Question

在我的应用程序中，我从url下载图像并保存到应用程序文档目录中。现在我想将这些下载的图像显示为图库。对于图像库我正在使用fGallery，我能够配置它并成功将其推送到导航控制器上并且fGallery视图也可见但是它没有显示我的图像，我为fGalley提供了像这样的图像数组

标题文件

@interface myController <FGalleryViewControllerDelegate> 

@property (strong, nonatomic) FGalleryViewController *localGallery;
@property (strong, nonatomic) NSMutableArray *localImages;

类文件

    //These are delegate methods of FGalleryViewControllerDelegate
    - (NSString*)photoGallery:(FGalleryViewController*)gallery filePathForPhotoSize:(FGalleryPhotoSize)size atIndex:(NSUInteger)index
    {
        return [localImages objectAtIndex:index];
    }

    - (NSString*)photoGallery:(FGalleryViewController *)gallery urlForPhotoSize:(FGalleryPhotoSize)size atIndex:(NSUInteger)index
    {
        return [localImages objectAtIndex:index];
    }

    - (int)numberOfPhotosForPhotoGallery:(FGalleryViewController *)gallery
    {
        int num;

        num = [localImages count];

        return num;
    }

    - (FGalleryPhotoSourceType)photoGallery:(FGalleryViewController *)gallery sourceTypeForPhotoAtIndex:(NSUInteger)index
    {    
         return FGalleryPhotoSourceTypeLocal;
    }
    //Delegate method ends here

// My method to show gallery with my images
-(void)ShowGallery
{
    localImages = [[NSMutableArray alloc]init];    

     NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *dataPath = [documentsDir stringByAppendingPathComponent:chatWithUser;
NSString *msgsColumn;

    //database query to fetch all images name and then
    while([results next])
    {
        msgsColumn = [results stringForColumn:@"msgs"];
        if([[[msgsColumn componentsSeparatedByString:@"."]objectAtIndex:1]isEqualToString:@"jpg"])
        {
            [localImages addObject:[dataPath stringByAppendingPathComponent:msgsColumn]];
        }
    }

    [database close];

    localGallery = [[FGalleryViewController alloc]initWithPhotoSource:self];

    [self.navigationController pushViewController:localGallery animated:YES];     
}

对于使用 stringByAppendingPathComponent 的图片路径，但我也尝试 stringByAppendingString 来指导图片位于文档目录中，但没有任何效果。

请帮我弄清楚出了什么问题。

Answer 1

我找到了解决方案，这里是

https://github.com/gdavis/FGallery-iPhone/issues/15

需要有关将下载图像显示为图库的帮助

1 个答案: